When you do baptisms, do you do anything for your students to remember the moment? I just saw Josh Griffin's posts on what they do for their high school ministry. They make a card with a picture of the student in the baptismal tank and write a few things on there and give it to the student. A VERY simple thing to do, but I think perhaps a very wonderful physical reminder to the students of that momentous occasion. You may want to "steal" the idea for your own ministry. Perhaps you do something like it or something different. I would love to hear what you do.
Check out the "girl's version" here.
Check out the "guy's version" here.